Room temperature preparation of carbon supported Pt-Ru catalysts

被引：32

作者：

Chen, Yu

Tang, Yawen

Liu, Changpeng

Xing, Wei

Lu, Tianhong ^{[1
]}

机构：

[1] Nanjing Normal Univ, Coll Chem & Environm Sci, Nanjing 210097, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 161卷 / 01期

基金：

中国国家自然科学基金;

关键词：

direct methanol fuel cell; Pt-Ru/C catalyst; tetrahydrofuran; alloying extent; CO;

D O I：

10.1016/j.jpowsour.2006.03.082

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A carbon supported Pt-Ru (Pt-Ru/C-T) catalyst can be prepared by a chemical reduction method in an aqueous solution with tetrahydrofuran (THF) at room temperature. The Pt-Ru particles possess high alloying, small average size and a low relative crystallinity. The electrocatalytic activity of the prepared Pt-Ru/C catalyst for methanol oxidation is much higher than that of commercial Pt-Ru/C (Pt-Ru/C-E) catalysts which have a similar average size and relative crystallinity, but the alloying extent is much lower than that in our Pt-Ru/C-T catalyst. The results illustrate that the alloying extent of Pt and Ru in the Pt-Ru/C catalyst plays an important role in the electrocatalytic activity of the Pt-Ru/C catalyst for methanol oxidation. (c) 2006 Elsevier B.V. All rights reserved.

引用

收藏

页码：470 / 473

页数：4

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